Window screen



Nov. 17, 1925. 1,561,877

C. S. MARTIN w mnow SCREEN Filed April 24, 1925 13 v if U l1 Ww,

. I Patented Nov. 17, 1925.

PATENT OFFICE.

, CLEMENT S. MARTIN, 0F ROCKVILLE, MARYLAND.

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Application filed-April 24, 1925. Serial No. 25,638.

To all whomit may concern Be it known that I, CLEMENT S. MARTIN, a citizen of United States, residing at Rockville, in the county of Montgomery and State of Maryland, have invented certain new and useful Improvements in Window Screens, of which the following is a specification, reference beinghad therein to, the accompanying drawing.

The present invention relates to window screens, and aims to provide a window screen frame having novel and improved means for coninniently and effectively, receiving and clamping the screen or other panel. Another object of the invention is the provision of a frame for a screen or other panel of such a construction as to readily receive the panel, in combination with strips adapted to be assembled with the frame in a sum pie manner for securing the panel in place in an effective manner, without the use of nails, tacks, screws or other similar securing elements. I

A further object is the provision of means for securing together the ends of the frame members at the corners of the frame, where by the frame members can be readily. assembled by the average person, without requiring skill, and providing a neat and strong construction.

With the foregoing and other objects in view, which will be apparent as the description proceeds, the invention resides in the construction and arrangement of parts, as hereinafter described and claimed, it being understood that changes can be made within the scope of what is claimed, without departing from the spirit of the invention,

The invention is illustrated in the accompanying drawing, wherein- Figure 1 is a side elevation of the improved window screen, oneof the corner clamping plates being removed.

Fig. 2 is a cross section on the line 2-2 of Fig. 1 showing the means for securing the panel in place.

Fig. 3 is a cross section corresponding to Fig. 2 showing how the clamping strip is insorted intoithe' frame member.

Figs. .4 and 5. are sections on the respective lines -1-'4.- and 5-5 of Fig. 1 showing the corner construction.

Fig. '6 is a fragmentary side elevation showing the means for suspending the frame within a window casing.

The frame may be of any suitable size,

of said groove projecting toward the center of the frame. The flange 12 is wider than the flange. 13. This enables the screen or and flanges 12 and 13 atthe opposite sides other panel 14 to be readily placed within the frame against the flange 12, said panel bein cut to a size slightly smaller than the opening defined by the flanges 13 but larger than the opening defined by the flanges 12. It is thus unnecessary to bend the edge portions of the panelin placing the panel in the frame, and the panel is then secured or clamped against the flanges 12 by means of clamping strips 15 inserted in the slots or grooves 11 by movement away from the center of the frame. 3

The strips 15 are provided at those edges which enter the grooves with beads 16 to contact with the flanges 12, and space the sides 17 of the strips substantially parallel with the flange 12 so as to accommodate the panel between said flanges 12 and strips 15, as seen in Fig.2. The beads 16 also provide fulcrums on which the strips may rock slightly to clamp the panel between the op- 1 posite edges of the strips and the edge porthe strip is inserted in the groove and slid home, as seen in Fig. 2, from the position shown in Fig. 3, the oblique side 18 of the strip will contact with. the edge portion 19 of the flange 13, thereby pressing that edge por tion of the strip which extends from the groove against or toward the panel 1 1 and flange 12. The strip thus wedges into the groove, and the pressure against the strip from the edge portion 19 of the flange 13, with the bead 16 bearing against the flange 12, will cause thesereen to'be'tightly clamped between the flange 12 and strip 15. The flanges 12 and' 13 are slightly resilient so that ineforclng a strip between the flanges, said flanges may be sprung apart slightly, thereby applying pressure to the strip 15 tc clamp the panel against the flange 12 tightly N0 nails, screws, tacks or other securing elements are necessary in holding the screen or strips in the frame. and the strips may be readily removed when it is desired to replace the screen or panel. The strips are normally held in place by friction.

The frame members 10 are secured together at the corners of the frame by pairs of clamping plates 20 overlapping the adjacent end portiorrs of the members, and the outer end inner ends of said plates are preferably of angular form to correspond to the outer and inner angles of the frame at the corners thereof. A clamping belt or element 21 extends through each pair of plates 20 and between the adjacent ends of the frame members, to clamp said members tightly between said plates. The plates have teeth to bite into the frame members, as seen in Fig. 4;, whereby to anchor them within the clamp formed. by said plates and bolt. The adjacent ends of the frame members need not have a mitre fit or abut one another, inasmuch as a space may be left to accommodate the bolt 21. This also eliminates the necessity for the accurate fitting together of the frame l'llQllllJOlS. The adjacent ends of the strips 15 may also be spaced apart, so that neither the frame members or strips need be cut accurately. The spaces between the frame members and strips are closed by the clampingplatcs 20 which extend across said spaces or openings. thereby providing a neat finish even though the frame members and strips are not cutaccurately to size. The inner ends of the plates 20 extend across the inner edges of the flanges 12 and 13 and strip 15 to the panel 14, as seen in Fig. Thus, the .frame members 10 and strips 15 may be supplied in different lengths, or may be supplied in long lengths to be cut into sections by the average person, and the frame members may be readily assembled by using the clamps, without requiring skill. The clamps also assist in holding the strips 15 in place, and in order to enable the panel to be removed and replaced, the clamps are loos-- cited or removed to enable the strips 1;) to be removed.

The frame may be conveniently supported within a window casing by means of plates 23 secured to the outer edges of the upright frame members or stiles 10 and having hooks 2f to engage over nails or pins 25 driven into the jambs of the window casing. as seen in Fig. (i, to support the window screen frame below the upper sash it; at; the outer side of the lower sash 27. This permits the window screen-to be swung outwardlv. The. upper edge portion of the screen frame is thus hingcdly mounted under the upper sash. and the lower rail or frame member of the screen may be detachably secured on the sill or other suitable means (not shown).

of the window casing by a nail. hook.

Having thus described the invention, what is claimed as new is:-

l. A frame of the character described having flanges at its inner edges projecting toward the center of the frame, the flanges at one side being wider than those at; the opposite side and defining an opening of smaller size than the opening defined by the lastnamed flanges, in order that a panel slightly larger than the firstnamed opening may be inserted through the secondnamed opening and placed against the firstnamed flanges, and strips to fit tightly between said flanges and clamp the panel against the firstnamed flanges by movement away from the center of the frame.

2. A frame of the character described having flan es at its inner edges projecting toward the center of the frame. the flanges at one side being wider than those at the opposite side and defining an opening of smaller size than the opening defined by the lastnamed flanges, in order that a panel slightly larger than the firstnamcd opening may be inserted through the secondnamcd opening and placed against the firstnamed flanges, and strips of wedge-shaped crosssection to fit tightly between said flanges by movement away from the center of the frame and clamp the panel against the firstnamed flanges.

3. A frame of the character described having spaced flanges at its inner edges projecting toward the center of the frame, the flanges at one side being wider than those at the opposite side for the contact of a panel inserted in the frame, and strips to fit between said flanges for clamping the panel against the firstnamed flanges, said strips having beads to contact with the firstnamed flanges beyond the edges of the panel.

4. A frame bfthe character described having spaced flanges at its inner edges projecting toward the center of the frame, the flanges at one side being wider than those at the opposite side for the contact of a panel inserted in the frame. and strips to fit between said flanges for clamping the panel against the fiizinamcd flanges, said strips having heads at those edges which enter between the flanges to contact with the firstnamed flanges beyond the edges of the panel. and the strips being of wedge-shaped crosssection to wedge, between the flanges.

53. A frame of the character described comprising frame members having flanges at their inncrcdgcs projecting toward the center of the frame. the. flanges. at one side being wider than those at the opposite side and defining an opening of smaller size than the opening defined by the lastnamed flanges. in order that a panel slightly larger than the firstnamcd opening may be inserted through the secon lnamcd opening and placed against the firstnamrd flanges. strips to fit. Lightly lflll between said flanges by movement away from the center of the frame and clamp the panel against the firstnamed flanges, pairs of clamping platesoverlapping the end per- 5 tions of said members, and bolts connecting said plates to clamp the frame members between them, said bolts being located between the ends of said members, and the inner ends of said iates bein bent inwardly to extend across t e inner e ges of said flanges and 1e strips at the corners of the frame and helding said strips between said flanges.

In testimony whereof I hereunto aiiix my signature.

CLEMENT S. MARTIN. 

